ファイルI/Oの文字コードについて

public boolean test_read(String url, String[] name){
  String ss = "";
  BufferedReader fin;
  /* オブジェクトの作成 */
  Kikan_DB db = new Kikan_DB();
  /* 今日の日付を取得 */
  Date date       = new Date();
  DateFormat df   = new SimpleDateFormat("[yyyy年MM月dd日HH時mm分ss秒]");
  String today    = df.format(date);

  try{
    for(int i=0; i<name.length; i++){
      fin = new BufferedReader(new InputStreamReader(new FileInputStream(url + name[i]), "JISAutoDetect"));
      System.out.println(today + "\t読込み開始:" + name[i]);
      write_rireki(today + "\t読込み開始:"+ name[i]);
      while ((ss = fin.readLine()) != null) {
        StringTokenizer st     = new StringTokenizer(ss, ",");
        String client_cd       = st.nextToken();
        String dept_cd         = st.nextToken();
        String client_name     = st.nextToken();
        String client_a_name   = st.nextToken();
        db.test_add(client_cd,dept_cd,client_name,client_a_name);
      }
      System.out.println(today + "\t読込み終了:" + name[i]);
      write_rireki(today + "\t読込み終了:"+ name[i]);
      fin.close();
    }
  return true;
  } catch(Exception e) {
    System.out.println("Error: " + e);
    write_error("読込みでエラーが発生しました。\n" + e);
    System.exit(1);
    return false;
  }
}

     【変更部分】
      while ((ss = fin.readLine()) != null) {
        StringTokenizer st     = new StringTokenizer(ss, ",");
        String client_cd       = UnicodeString(st.nextToken());
        String dept_cd         = UnicodeString(st.nextToken());
        String client_name     = UnicodeString(st.nextToken());
        String client_a_name   = UnicodeString(st.nextToken());
        db.test_add(client_cd,dept_cd,client_name,client_a_name);
      }

private String UnicodeString(String s) throws UnsupportedEncodingException {
  return new String(s.getBytes("UTF-8"), "EUC-JP");
}